公开(公告)号：US09401766B2

公开(公告)日：2016-07-26

申请号：US13524698

申请日：2012-06-15

申请人： Zhiliang Yuan ,  James Dynes ,  Andrew James Shields

发明人： Zhiliang Yuan ,  James Dynes ,  Andrew James Shields

IPC分类号： H04B10/70 ,  H04L9/08 ,  H04J14/02

CPC分类号： H04B10/70 ,  H04J14/0282 ,  H04L9/0855

摘要： A quantum communication system comprising a receiver and a plurality of transmitters, said receiver comprising a detector sub-system, each of said transmitters being configured to emit pulses of radiation, said detector subsystem comprising at least one detector, said detector being configured to detect said light pulses, the system comprising a timing control module, said timing control module being configured to control the number of light pulses received by the detector sub-system, such that just one light pulse from one transmitter reaches the detector sub-system at any one time, the timing control module also allowing the transmitter which sent said pulse to be identified.

摘要翻译： 一种包括接收机和多个发射机的量子通信系统，所述接收机包括检测器子系统，每个所述发射机被配置为发射辐射脉冲，所述检测器子系统包括至少一个检测器，所述检测器被配置为检测所述 光脉冲，所述系统包括定时控制模块，所述定时控制模块被配置为控制由检测器子系统接收的光脉冲的数量，使得来自一个发射机的仅一个光脉冲在任何一个处到达检测器子系统 时间控制模块还允许发送所述脉冲的发送器被识别。

公开(公告)号：US08755687B2

公开(公告)日：2014-06-17

申请号：US13476816

申请日：2012-05-21

申请人： James Dynes ,  Zhiliang Yuan ,  Andrew W. Sharpe ,  Andrew James Shields

发明人： James Dynes ,  Zhiliang Yuan ,  Andrew W. Sharpe ,  Andrew James Shields

IPC分类号： H04B10/00

CPC分类号： H04L7/0008 ,  H04B10/70 ,  H04L9/0852

摘要： A communication system comprising an emitter of weak light pulses, a detector which is capable of detecting single photons, and a source of a clock signal, wherein said emitter and detector are synchronized using said clock signal, the system further comprising a frequency divider for said clock signal to produce a reduced frequency clock signal and a clock regenerator for regenerating the original clock signal from the reduced frequency clock signal, the system further comprising a communication channel configured to communicate the clock signal between the emitter and detector, the clock signal being reduced before sending through said channel and reconstructed after it has exited said channel.

摘要翻译： 一种包括弱光脉冲发射器，能够检测单个光子的检测器和时钟信号源的通信系统，其中所述发射器和检测器使用所述时钟信号同步，所述系统还包括用于所述时钟信号的分频器 时钟信号以产生降频时钟信号和时钟再生器，用于从降频时钟信号再生原始时钟信号，该系统还包括被配置为在发射极和检测器之间传送时钟信号的通信信道，时钟信号被减少 在通过所述信道发送之后，在已经退出所述信道之后被重构。

公开(公告)号：US08483572B2

公开(公告)日：2013-07-09

申请号：US12906507

申请日：2010-10-18

申请人： James Dynes ,  Zhiliang Yuan ,  Andrew W. Sharpe ,  Andrew James Shields

发明人： James Dynes ,  Zhiliang Yuan ,  Andrew W. Sharpe ,  Andrew James Shields

IPC分类号： H04B10/12

CPC分类号： H04B10/70 ,  H04L9/0858

摘要： A quantum communication system, said system comprising: an emitter configured to send signal light pulses having a first intensity and decoy light pulses having a second intensity to a receiver, wherein information is encoded on said signal pulses; a controller configured to set the distribution of signal pulses and decoy pulses and the intensity of the signal pulse such that the maximum average secure bit rate is achieved over the range of potential drift in the decoy pulse intensity during use of the system, while maintaining a non-zero secure bit rate over the range of potential drift in the decoy pulse intensity during use of the system.

摘要翻译： 一种量子通信系统，所述系统包括：发射器，被配置为向接收机发送具有第一强度的信号光脉冲和具有第二强度的诱饵光脉冲，其中信息被编码在所述信号脉冲上; 控制器，被配置为设置信号脉冲和诱饵脉冲的分布以及信号脉冲的强度，使得在系统使用期间在诱饵脉冲强度的电位漂移范围内实现最大平均安全比特率，同时保持 在系统使用期间的诱饵脉冲强度的潜在漂移范围内的非零安全比特率。